-/*-
- * BSD LICENSE
- *
- * Copyright 2017 6WIND S.A.
- * Copyright 2017 Mellanox.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of 6WIND S.A. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox Technologies, Ltd
*/
+#include <stdbool.h>
+
#include <rte_alarm.h>
#include <rte_malloc.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_ethdev_vdev.h>
#include <rte_devargs.h>
#include <rte_kvargs.h>
-#include <rte_vdev.h>
+#include <rte_bus_vdev.h>
#include "failsafe_private.h"
+int failsafe_logtype;
+
const char pmd_failsafe_driver_name[] = FAILSAFE_DRIVER_NAME;
static const struct rte_eth_link eth_link = {
.link_speed = ETH_SPEED_NUM_10G,
.link_duplex = ETH_LINK_FULL_DUPLEX,
.link_status = ETH_LINK_UP,
- .link_autoneg = ETH_LINK_SPEED_AUTONEG,
+ .link_autoneg = ETH_LINK_AUTONEG,
};
static int
{
uint8_t nb_subs;
int ret;
+ int i;
+ struct sub_device *sdev;
+ uint8_t sdev_iterator;
ret = failsafe_args_count_subdevice(dev, params);
if (ret)
ERROR("Could not allocate sub_devices");
return -ENOMEM;
}
+ /* Initiate static sub devices linked list. */
+ for (i = 1; i < nb_subs; i++)
+ PRIV(dev)->subs[i - 1].next = PRIV(dev)->subs + i;
+ PRIV(dev)->subs[i - 1].next = PRIV(dev)->subs;
+
+ FOREACH_SUBDEV(sdev, sdev_iterator, dev) {
+ sdev->sdev_port_id = RTE_MAX_ETHPORTS;
+ }
return 0;
}
rte_free(PRIV(dev)->subs);
}
+static void fs_hotplug_alarm(void *arg);
+
+int
+failsafe_hotplug_alarm_install(struct rte_eth_dev *dev)
+{
+ int ret;
+
+ if (dev == NULL)
+ return -EINVAL;
+ if (PRIV(dev)->pending_alarm)
+ return 0;
+ ret = rte_eal_alarm_set(failsafe_hotplug_poll * 1000,
+ fs_hotplug_alarm,
+ dev);
+ if (ret) {
+ ERROR("Could not set up plug-in event detection");
+ return ret;
+ }
+ PRIV(dev)->pending_alarm = 1;
+ return 0;
+}
+
+int
+failsafe_hotplug_alarm_cancel(struct rte_eth_dev *dev)
+{
+ int ret = 0;
+
+ rte_errno = 0;
+ rte_eal_alarm_cancel(fs_hotplug_alarm, dev);
+ if (rte_errno) {
+ ERROR("rte_eal_alarm_cancel failed (errno: %s)",
+ strerror(rte_errno));
+ ret = -rte_errno;
+ } else {
+ PRIV(dev)->pending_alarm = 0;
+ }
+ return ret;
+}
+
+static void
+fs_hotplug_alarm(void *arg)
+{
+ struct rte_eth_dev *dev = arg;
+ struct sub_device *sdev;
+ int ret;
+ uint8_t i;
+
+ if (!PRIV(dev)->pending_alarm)
+ return;
+ PRIV(dev)->pending_alarm = 0;
+ FOREACH_SUBDEV(sdev, i, dev)
+ if (sdev->state != PRIV(dev)->state)
+ break;
+ /* if we have non-probed device */
+ if (i != PRIV(dev)->subs_tail) {
+ if (fs_lock(dev, 1) != 0)
+ goto reinstall;
+ ret = failsafe_eth_dev_state_sync(dev);
+ fs_unlock(dev, 1);
+ if (ret)
+ ERROR("Unable to synchronize sub_device state");
+ }
+ failsafe_dev_remove(dev);
+reinstall:
+ ret = failsafe_hotplug_alarm_install(dev);
+ if (ret)
+ ERROR("Unable to set up next alarm");
+}
+
+static int
+fs_mutex_init(struct fs_priv *priv)
+{
+ int ret;
+ pthread_mutexattr_t attr;
+
+ ret = pthread_mutexattr_init(&attr);
+ if (ret) {
+ ERROR("Cannot initiate mutex attributes - %s", strerror(ret));
+ return ret;
+ }
+ /* Allow mutex relocks for the thread holding the mutex. */
+ ret = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+ if (ret) {
+ ERROR("Cannot set mutex type - %s", strerror(ret));
+ return ret;
+ }
+ ret = pthread_mutex_init(&priv->hotplug_mutex, &attr);
+ if (ret) {
+ ERROR("Cannot initiate mutex - %s", strerror(ret));
+ return ret;
+ }
+ return 0;
+}
+
static int
fs_eth_dev_create(struct rte_vdev_device *vdev)
{
struct rte_eth_dev *dev;
- struct ether_addr *mac;
+ struct rte_ether_addr *mac;
struct fs_priv *priv;
struct sub_device *sdev;
const char *params;
return -1;
}
priv = PRIV(dev);
- priv->dev = dev;
+ priv->data = dev->data;
dev->dev_ops = &failsafe_ops;
dev->data->mac_addrs = &PRIV(dev)->mac_addrs[0];
dev->data->dev_link = eth_link;
PRIV(dev)->nb_mac_addr = 1;
+ TAILQ_INIT(&PRIV(dev)->flow_list);
dev->rx_pkt_burst = (eth_rx_burst_t)&failsafe_rx_burst;
dev->tx_pkt_burst = (eth_tx_burst_t)&failsafe_tx_burst;
ret = fs_sub_device_alloc(dev, params);
ret = failsafe_args_parse(dev, params);
if (ret)
goto free_subs;
+ ret = rte_eth_dev_owner_new(&priv->my_owner.id);
+ if (ret) {
+ ERROR("Failed to get unique owner identifier");
+ goto free_args;
+ }
+ snprintf(priv->my_owner.name, sizeof(priv->my_owner.name),
+ FAILSAFE_OWNER_NAME);
+ DEBUG("Failsafe port %u owner info: %s_%016"PRIX64, dev->data->port_id,
+ priv->my_owner.name, priv->my_owner.id);
+ ret = rte_eth_dev_callback_register(RTE_ETH_ALL, RTE_ETH_EVENT_NEW,
+ failsafe_eth_new_event_callback,
+ dev);
+ if (ret) {
+ ERROR("Failed to register NEW callback");
+ goto free_args;
+ }
ret = failsafe_eal_init(dev);
if (ret)
- goto free_args;
+ goto unregister_new_callback;
+ ret = fs_mutex_init(priv);
+ if (ret)
+ goto unregister_new_callback;
+ ret = failsafe_hotplug_alarm_install(dev);
+ if (ret) {
+ ERROR("Could not set up plug-in event detection");
+ goto unregister_new_callback;
+ }
mac = &dev->data->mac_addrs[0];
- if (mac_from_arg) {
+ if (failsafe_mac_from_arg) {
/*
* If MAC address was provided as a parameter,
* apply to all probed slaves.
mac);
if (ret) {
ERROR("Failed to set default MAC address");
- goto free_args;
+ goto cancel_alarm;
}
}
} else {
mac->addr_bytes[0], mac->addr_bytes[1],
mac->addr_bytes[2], mac->addr_bytes[3],
mac->addr_bytes[4], mac->addr_bytes[5]);
+ dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
+ PRIV(dev)->intr_handle = (struct rte_intr_handle){
+ .fd = -1,
+ .type = RTE_INTR_HANDLE_EXT,
+ };
+ rte_eth_dev_probing_finish(dev);
return 0;
+cancel_alarm:
+ failsafe_hotplug_alarm_cancel(dev);
+unregister_new_callback:
+ rte_eth_dev_callback_unregister(RTE_ETH_ALL, RTE_ETH_EVENT_NEW,
+ failsafe_eth_new_event_callback, dev);
free_args:
failsafe_args_free(dev);
free_subs:
fs_sub_device_free(dev);
free_dev:
- rte_free(PRIV(dev));
+ /* mac_addrs must not be freed alone because part of dev_private */
+ dev->data->mac_addrs = NULL;
rte_eth_dev_release_port(dev);
return -1;
}
dev = rte_eth_dev_allocated(name);
if (dev == NULL)
return -ENODEV;
+ rte_eth_dev_callback_unregister(RTE_ETH_ALL, RTE_ETH_EVENT_NEW,
+ failsafe_eth_new_event_callback, dev);
ret = failsafe_eal_uninit(dev);
if (ret)
ERROR("Error while uninitializing sub-EAL");
failsafe_args_free(dev);
fs_sub_device_free(dev);
- rte_free(PRIV(dev));
+ ret = pthread_mutex_destroy(&PRIV(dev)->hotplug_mutex);
+ if (ret)
+ ERROR("Error while destroying hotplug mutex");
+ rte_free(PRIV(dev)->mcast_addrs);
+ /* mac_addrs must not be freed alone because part of dev_private */
+ dev->data->mac_addrs = NULL;
rte_eth_dev_release_port(dev);
return ret;
}
+static bool
+devargs_already_listed(struct rte_devargs *devargs)
+{
+ struct rte_devargs *list_da;
+
+ RTE_EAL_DEVARGS_FOREACH(devargs->bus->name, list_da) {
+ if (strcmp(list_da->name, devargs->name) == 0)
+ /* devargs already in the list */
+ return true;
+ }
+ return false;
+}
+
static int
rte_pmd_failsafe_probe(struct rte_vdev_device *vdev)
{
const char *name;
+ struct rte_eth_dev *eth_dev;
+ struct sub_device *sdev;
+ struct rte_devargs devargs;
+ uint8_t i;
+ int ret;
name = rte_vdev_device_name(vdev);
INFO("Initializing " FAILSAFE_DRIVER_NAME " for %s",
name);
+
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
+ strlen(rte_vdev_device_args(vdev)) == 0) {
+ eth_dev = rte_eth_dev_attach_secondary(name);
+ if (!eth_dev) {
+ ERROR("Failed to probe %s", name);
+ return -1;
+ }
+ eth_dev->dev_ops = &failsafe_ops;
+ eth_dev->device = &vdev->device;
+ eth_dev->rx_pkt_burst = (eth_rx_burst_t)&failsafe_rx_burst;
+ eth_dev->tx_pkt_burst = (eth_tx_burst_t)&failsafe_tx_burst;
+ /*
+ * Failsafe will attempt to probe all of its sub-devices.
+ * Any failure in sub-devices is not a fatal error.
+ * A sub-device can be plugged later.
+ */
+ FOREACH_SUBDEV(sdev, i, eth_dev) {
+ /* rebuild devargs to be able to get the bus name. */
+ ret = rte_devargs_parse(&devargs,
+ sdev->devargs.name);
+ if (ret != 0) {
+ ERROR("Failed to parse devargs %s",
+ devargs.name);
+ continue;
+ }
+ if (!devargs_already_listed(&devargs)) {
+ ret = rte_dev_probe(devargs.name);
+ if (ret != 0) {
+ ERROR("Failed to probe devargs %s",
+ devargs.name);
+ continue;
+ }
+ }
+ }
+ rte_eth_dev_probing_finish(eth_dev);
+ return 0;
+ }
+
return fs_eth_dev_create(vdev);
}
RTE_PMD_REGISTER_VDEV(net_failsafe, failsafe_drv);
RTE_PMD_REGISTER_PARAM_STRING(net_failsafe, PMD_FAILSAFE_PARAM_STRING);
+
+RTE_INIT(failsafe_init_log)
+{
+ failsafe_logtype = rte_log_register("pmd.net.failsafe");
+ if (failsafe_logtype >= 0)
+ rte_log_set_level(failsafe_logtype, RTE_LOG_NOTICE);
+}
git.droids-corp.org / dpdk.git / blobdiff